>TIGR01930 AcCoA-C-Actrans acetyl-CoA acetyltransferases; InterPro: IPR002155 Two different types of thiolase , , are found both in eukaryotes and in prokaryotes: acetoacetyl-CoA thiolase (2.3.1.9 from EC) and 3-ketoacyl-CoA thiolase (2.3.1.16 from EC). 3-ketoacyl-CoA thiolase (also called thiolase I) has a broad chain-length specificity for its substrates and is involved in degradative pathways such as fatty acid beta-oxidation. Acetoacetyl-CoA thiolase (also called thiolase II) is specific for the thiolysis of acetoacetyl-CoA and involved in biosynthetic pathways such as poly beta-hydroxybutyrate synthesis or steroid biogenesis. In eukaryotes, there are two forms of 3-ketoacyl-CoA thiolase: one located in the mitochondrion and the other in peroxisomes. There are two conserved cysteine residues important for thiolase activity. The first located in the N-terminal section of the enzymes is involved in the formation of an acyl-enzyme intermediate; the second located at the C-terminal extremity is the active site base involved in deprotonation in the condensation reaction. Mammalian nonspecific lipid-transfer protein (nsL-TP) (also known as sterol carrier protein 2) is a protein which seems to exist in two different forms: a 14 Kd protein (SCP-2) and a larger 58 Kd protein (SCP-x). The former is found in the cytoplasm or the mitochondria and is involved in lipid transport; the latter is found in peroxisomes. The C-terminal part of SCP-x is identical to SCP-2 while the N-terminal portion is evolutionary related to thiolases ..

Probab=96.19  E-value=0.0031  Score=40.39  Aligned_cols=79  Identities=25%  Similarity=0.279  Sum_probs=52.6

Q ss_pred             HHHHHHHHHHHHCCCCCCCCCCCCCCCHHHHHHHHHHCC---------------C--CHHHHHHHHH--HHCC---CHHH
Q ss_conf             777888898740010001210244444158999999719---------------7--8767336586--5193---3012
Q gi|254780497|r  228 VELIEKVFDSTHLTIENIDWFVPHQANWRIINSIVDKMK---------------I--PFDKVIVTVD--IHGN---TSAA  285 (324)
Q Consensus       228 ~~~i~~~L~~~gl~~~did~~~~Hq~~~~~~~~~~~~lg---------------l--~~e~~~~~~~--~~Gn---~~sa  285 (324)
T Consensus       331 ~~A~~~aL~kaGL~~~diDl~E~NEAFAaqvL~~~~~L~~~~~~~~~LG~~~a~~~~~~~k~NvnGGAIAlGHPlGasGA  410 (447)
T TIGR01930       331 VPAIPKALKKAGLSISDIDLFEINEAFAAQVLASIKELGLDDYIRQALGRDTALLDIDLEKVNVNGGAIALGHPLGASGA  410 (447)
T ss_pred             HHHHHHHHHHHCCCHHHCCHHHHHHHHHHHHHHHHHHHCCHHHHHHHCCCCCEECCCCCCCCCCCCCHHHCCCCCCCHHH
T ss_conf             88999999984987335031013678999999999971784688863041110025861241766532111630023188


Q ss_pred             HHHHHHHHHHHCCCCCCCCEEE
Q ss_conf             6999999999806889998999
Q gi|254780497|r  286 SIPLALAVAVKEGRVKKGDCLL  307 (324)
Q Consensus       286 s~~~~L~~~~~~g~l~~Gd~vl  307 (324)
T Consensus       411 Ri~~tL~~~L~~~~-~g~~~G~  431 (447)
T TIGR01930       411 RIVTTLLHELKRRK-KGKRYGL  431 (447)
T ss_pred             HHHHHHHHHHHHCC-CCCCHHH
T ss_conf             99999999998514-8953016